Radiator-cap lock



June 19', 1928.

- D. w. BLANC RADIATOR CAP Locx Filed Aug. 31. 1922 \PX IIIIII! iw\,.

INVENTOR SD/\Difikozmfi BY r.

A TTORNE YR Patented June 19, 1928.

- UNITED STATES PATENT OFFICE.

DAVID W. BLANC, OF CHICAGO, ILLINOIS, 'ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE KINGSLEY-MILLER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

RADIATOR-CAP LOCK.

Application filed August 31, 1922. Serial No. 585,496.

My invention relates to improvements in V device, the motometer being shown'in eleradiator cap locks,v and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a radiator cap which may be permanently locked to a radiator and which is provided with a hinged cover, whereby access to the interior of the radiator may be attained.

A further object of my invention is to provide a device of the character described which has novel means for locking the cap in a predetermined position, whereby the cap is facing forward with respect to the car when it is locked in position.

' A further objectofumy invention is to providea device of the character described which makes use of a monogramplate, the locking meansof the cap being fashioned so as to permit the monogram plate to be disposed in the front of the car when the cap is locked.

A further object of my invention is to provide a device of the character described which has novel means for locking the m0- tometer against theft.

A further object of my invention is to provide a device of the character described in which the cover of the cap may be opened without the necessity of unfastening locking bolts or the like.

-A further object of my invention is to provide a device of the character described which has novel means for preventing the water from over-flowing through the cap.

A further object of my invention is to provide a device of the character described which is simple in construction, and which is durable and efficient for the purpose intended. e

-A further object of my invention is to provide a device of the character described which'has means whereby the cap may be disposed on any radiator.

Other objects and advantages will appear in the following specifiation, and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this application, in which I Figure 1 is a top plan view of the device,

Figure 2 is a vertical section through the vation,

Figure 3 is a front elevation of a portion of-the device, and

v Figure 4 is a section along the line 4,-4 of Figure2. Y I

In carrying out my invention, I provide an adapter 1 which is adapted to be disposed over a radiator inlet pipe 2. Thead'apter is made of various sizes so as to fit the inlet pipes of the various makes of radiators.v

The outer surface of the adapter, however, is made the same in all cases so as to readily fit the cap 3. In other words, the adapter is provided so as to make a "standard size cap fit the inlet pipes, of any type of radiawith a plurality of vertical recesses 7 in its upper surface. These recesses Y are adapted to receive a pin 8 which is disposed in a recess 9 of the cap 3. In disposing the adapter on the pipe 2, the adapter is screwed on tightly to the pipe so as to dispose one of the openings 7 in front of the radiator. The pin 8 is carried by the cap 3 and is disposed adjacent to the monogram plate 10. When the cap 3 is disposed over the adapter 1, the cap is rotated until the monogram plate 10 is facing forward with respect to the car. The person assembling the cap to the adapter then knows that the pin 8 is directly above the recess 7 which hasbeen disposedin the front of the car.

11, the pin 8 will drop into the recess 7, whereby the cap 3 will be locked against rotation with respect to the adapter 1.

Furthermore, it will be noted that the cap 3 the cap 3 from being moved upwardlywith A screwcll locks the pin 8 in the recess 9 and it will be obvious that by merely unscrewing the screw respect to the adapter 1 when once the cap has been assembled to the adapter. As clearly shown in Figures 2 and 3, the cap has an annular groove 12 therein which is adapted to receive pins 13, the pins being carried by the adapter 1. Slots 1a communicate with the groove 12 and permit the pins 13 to be received within the groove 12. In assembling the cap to the adapter, the pins 13 are alined with the slots 14:, whereupon the cap may be moved downwardly so as to cause the groove 12 to receive the pins. The cap may now be rotated so as to bring the monogram plate 10 into the desired position. The cap cannot be removed from the adapter 1 until the pins 13 are again alined With the slots 14. This movement is prevented by the pin 8 which ,is received within the recess 7. The set screw 5 and the pins 8 and 13 provide a novel meanslfor securely locking the cap 3. to the pipe 2 and preventing the cap from being removed from the pipe.

The cap 3 has a hinged cover 15 which is pivotally secured to the cap at 16, and which carries a tongue 17 (see Figure 1) that is adapted to be received within a recess 18. The recess 18 is in back of the plate 10 and has spherical-shaped depressions 19 therein which are adapted to receive balls 20. The balls 20 are slidably disposed within a bore 21, and are yieldingly kept in extended position by means of the coil spring 22. From this construction, it Will be noted that the cover, 15 is yieldingly locked in place to the cap 3 when the balls 20 are received within the depressions 19. The cover can be readily opened by merely grasping the motometer 23 which ,is carried by the cover 15 and moving the latter backwardly about the pivot 16. This movementcauses the balls 20 to move inwardly against the tension of the spring '22 so as to release the tongue 17 from the recess 18. p v The motometer 23 is also provided with a novel locking means, whereby theft thereof is prevented. The shank 24 of the motometer extends through an opening 25 in the cover 15 and is locked in place by lock nuts 26. The cover 15 has a recess 27 which receives the nuts 26. Access to the nuts 26 is prevented by means of a metal plate'28 which is disposed in an annular groove 29.

. It will 'be'no'ted that the plate 28 has an opening 30 therein, through which the shank 24 extends. "One wall of the groove 29 is horizontal and provides a stop for the plate 28,.while the other wall is substantially vertical, but ,is also slightly conical-shaped or undercut as is clearly shown in Figure 2. The plate 28, before being disposed within the groove 29, is slightly bowl-shaped so as to permit the plate to be readily disposed within thegroove. A nut 31 disposed on the shank 24 is now screwed up so as to move the plate 28 into engagement with the conical-shaped wall of the groove 29. By tightening the nut 31, the plate 28 is flat tened out so as to cause it to be forced into the corner made by the walls of the groove 29. When the plate is once forced into this position, it cannot be removed, since the diameter of the plate is greater than the diameter of the entrance of the groove 29. Even though the nut 31 is removed from the shank 24, the plate 28 will stay ,in the position shown in Figure 2, whereby access to the nuts 26 is prevented.

The upper end of theadapter 1 is flush with a shoulder 32 of the cap 3. A gasket 33 is disposed over the shoulder 32' and the top of the adapter 1.- The gasket is also adapted to hold a strainer 34 in place, the strainer having a rim 35 which is disposed between the adapter and the gasket. The gasket 33 is made of a resilient materialand is adapted to bear against the underside of the cover 15 when the latter is in "closed position. In this manner, the gasket is firmly seated upon the shoulder 32 and the top of the adapter '1, wherebyit prevents water from flowing between the cap and the adapter.

From the foregoing description 'ofthe various parts of the device, the operation thereof may be readily understood. In securing the cap to the pipe 2, the adapter is first disposed on the pipe and is locked in place by the set screw 5 so that one of-the openings 7 is disposed in the front of the car. As heretofore stated, the adapter has its inner bore of the required diameter so as to fit the special inlet pipe 2 to which the p ace when once secured to the car, The.

plate 28 also provides a novel means for preventing the theft of the motometer 23.

The cover 15 is readily opened without the necessity of first unfastening the bolts or screws. The cover can be opened by merely swinging the motometer 23 backwardly about the pivots 16, thereupon the balls 20 release the tongue 17 from the recess 18 in the manner heretofore described. The

gasket 33 provides a resilient seat to the cov- The device makes a pleasing appearance to the eye and is durable and efiicient for the purpose intended. It is obvious that it can be manufactured at relatively slight expense and can be readily secured to all types of cars.

I claim:

1. A device of the type described comprising an adapter having a plurality of recesses therein, a cap carried byv said adapter, a pin carried by said cap and being adapted to enter one of said recesses, whereby said cap is locked against rotation, and a hinged cover for said cap and being yieldingly held in closed position.

2. A device of the type described comprising an adapter having recesses therein, pins fixed on said adapter, 2. cap having a groove adapted to receive said pins, and a movable pin carried by said cap and being adapted to enter one of said recesses, whereby said cap is locked against rotation with respect to said adapter.

3. In a radiator-cap structure, the combination of an adapter designed to be applied to a radiator-neck and having a plurality of spaced recesses disposed vertically when so applied, means to lock said adapter from turning on said radiator-neck, a cap on and adapted to turn relatively to said adapter, a pin slidable in said cap and designed to drop by gravity into any registering one of said recesses to lock the cap against turning on said adapter, and means to hold said pin temporarily elevated above the level of said recesses until said cap is properly positioned on said adapter.

' DAVID W. BLANC. 

